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TRIM Support Enabler

What might be a reason for long boot times even after following all these instructions? My friend, who also has a 2010 MBP and G2 Intel SSD, followed all the instructions and has long boot times. Anything else to try/check?
 
How long is "long"?

Remember, measuring starts when spinwheel appear.
Everything before that has nothing to do with the disk or loading OSX.
 
It was long relative to his other boots. But I misinterpreted his issue; his problem was a long shut down time. It was fixed by running these through terminal

cd /
sudo chmod 1775 .
sudo chown root:admin .

Sorry for the mix up
 
thank you very much!

I just used it on my iMac with Intel 320 Series (120gb) and worked very well!
 
So if under system profiler, it says: "TRIM Support: YES" then it is working?

Also, if i follow the directions to erase free space, will i lose any data (files, etc.)?
 
are we supposed to see any confirmation after typing in those terminal commands? how long does it take to take effect?

I followed all directions (enabled TRIM, erase disk, terminal commands, re-run trim enabler again, emptied trash)

I am still getting 30-31 s bootup time from when I push the button to dock. This used to be about 20 seconds before I did anything.

Also, before I erased my disk, i restarted my computer and noticed that the bootup time was really fast (maybe 15s by counting "one thousands", but not using a precise timer). After I erased the disk however, I am getting the above performance.

Is there something I am missing? I also tried repairing permissions, but still consistently getting 30s bootup time (from button press).

ALSO:

My fans now seem to be running on high even though all i have open is chrome with this website (one tab). Does it have anything to do with TRIM?
 
Last edited:
NovemberWhiskey said:
are we supposed to see any confirmation after typing in those terminal commands? how long does it take to take effect?

I followed all directions (enabled TRIM, erase disk, terminal commands, re-run trim enabler again, emptied trash)

I am still getting 30-31 s bootup time from when I push the button to dock. This used to be about 20 seconds before I did anything.

Also, before I erased my disk, i restarted my computer and noticed that the bootup time was really fast (maybe 15s by counting "one thousands", but not using a precise timer). After I erased the disk however, I am getting the above performance.

Is there something I am missing? I also tried repairing permissions, but still consistently getting 30s bootup time (from button press).

ALSO:

My fans now seem to be running on high even though all i have open is chrome with this website (one tab). Does it have anything to do with TRIM?
Click to expand...
1) What kind of SSD are you using? 2) you can disable TRIM as easy as you enabled it. So, you can disable it and see if you are still having these problems. If they persist then it's not TRIM. If they desist then I would recommend keeping it disabled.
 
NovemberWhiskey said:
Is there something I am missing? I also tried repairing permissions, but still consistently getting 30s bootup time (from button press).

ALSO:

My fans now seem to be running on high even though all i have open is chrome with this website (one tab). Does it have anything to do with TRIM?
Click to expand...

Maybe spotlight was reindexing? At least for me it did that, maybe it's initiated if chowning the permissions for / ?
 
Weaselboy said:
No you won't. It just wipes unused space on the drive and in doing so TRIMs that area.
Click to expand...

So if I have let say 70gb of free space when I wipe all that, and them I remove some files and I got 100gb of free space.

This 30gb that I deleted does not have trim enabled?

--

And about the Trim Support, can it be incompatible with any software update?
 
ZeD X said:
So if I have let say 70gb of free space when I wipe all that, and them I remove some files and I got 100gb of free space.

This 30gb that I deleted does not have trim enabled?
Click to expand...

they will have trim enabled because trim triggers on every file delete or move AFTER trim is enabled
 
Can I atualize my Mac by software updates or any of them can disable trim again?

thanks
 
LightSpeed1 said:
Did you try disabling TRIM?
Click to expand...

Yes. Still around 30-31 s bootup.

I know for certain that when the drive was fresh, I was getting 20s from button-press. However, I am not sure what my immediately pre-trim time was as I forgot to use a stopwatch. After installing TRIM, but before clearing cache, I timed from button press to dock and got 15s, but I was only counting "one-thousands" (forgot to use stopwatch). After clearing cache and commands, it was 30s.

I know it was imprecise, but it just felt slower overall. Uninstalling TRIM didn't help, and I currently have it enabled since there is no difference.

Wish I was more precise about things. :eek:

Anyways, I will see how it goes. overall no major problems.
 
Just thought I'd throw my benchmarks with postmark in for those interested:


OCZ Vertex 2E 240Gb
iMac quad i7 2.93Ghz
8Gb RAM DDR3

WITHOUT TRIM

Time:
14 seconds total
9 seconds of transactions (2222 per second)

Files:
20163 created (1440 per second)
Creation alone: 10000 files (2500 per second)
Mixed with transactions: 10163 files (1129 per second)
10053 read (1117 per second)
9945 appended (1105 per second)
20163 deleted (1440 per second)
Deletion alone: 10326 files (10326 per second)
Mixed with transactions: 9837 files (1093 per second)

Data:
557.87 megabytes read (39.85 megabytes per second)
1165.62 megabytes written (83.26 megabytes per second)

WITH TRIM (before erase free space)

Time:
283 seconds total
130 seconds of transactions (153 per second)

Files:
20163 created (71 per second)
Creation alone: 10000 files (2500 per second)
Mixed with transactions: 10163 files (78 per second)
10053 read (77 per second)
9945 appended (76 per second)
20163 deleted (71 per second)
Deletion alone: 10326 files (69 per second)
Mixed with transactions: 9837 files (75 per second)

Data:
557.87 megabytes read (1.97 megabytes per second)
1165.62 megabytes written (4.12 megabytes per second)

WITH TRIM (after erase free space)

Time:
289 seconds total
132 seconds of transactions (151 per second)

Files:
20163 created (69 per second)
Creation alone: 10000 files (2500 per second)
Mixed with transactions: 10163 files (76 per second)
10053 read (76 per second)
9945 appended (75 per second)
20163 deleted (69 per second)
Deletion alone: 10326 files (67 per second)
Mixed with transactions: 9837 files (74 per second)

Data:
557.87 megabytes read (1.93 megabytes per second)
1165.62 megabytes written (4.03 megabytes per second)

---

Will be interested to see if Lion's implementation of TRIM ultimately brings any improvements, but I'm keeping it off for now.
 
Thanks Cindori!

Here is a quick test of my MacPro 2008 + Crucial C300 256MB SSD:

Time measured from the Apple logo to the login screen:

Boot after complete Shut Down:
- before TRIM enabler: 28s
- after TRIM enabler: 20s (no difference between before/after Erase Data)

Boot after Restart:
- after TRIM enabler: 14s

Erasing Data took another 10-15 minutes since the message "no enough free space on the drive".
Be patient :D
 
anyone installed the 10.6.8 beta yet?

I'm hearing on the crucial forums that it's fixed all the issues running a crucial m4 under SL

gonna try it out myself and will report back...
 
Cindori said:
Not unless someone can provide evidence of the need to do so.

The current kext works up until Lion and I see no reason to start juggling with kexts now that maybe is changed by only a line of code.

If the new kext would provide performance increase though...
Click to expand...

At least there are rumors that 10.6.8 beta will fix some sata 3 issues. Maybe current latest driver helps in freezes some users are experiencing?
But patching latest driver needs to be done manually.

So I would propose that you give an option which version of patched driver to install.
 
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